Related Clues:
- Letter successor, to a large degree
- Business card detail
- Elders leave Emerald Isle for messages
- Subject of some computer settings
- Ladies' room doors missing message
- Online order confirmations
- Alternative to U.S.P.S
- Let one's fingers do the talking
- Potential virus sources
- Phishing line?
- Inbox filler
- Letter medium
- Communicate by computer
- Game's up - one's received the message on-screen
- Members of Parliament about to send messages quickly?